I actually think that’s a really helpful out of office message? I appreciate how clear it is about who to contact in which circumstance (so you’re not having to do the awkward dance of trying to track down the right people while not inconveniencing the wrong ones), while maintaining a friendly-but-firm boundary around the vacationing person’s time (since none of the options include things like “here’s my cell phone number!”).
Q. Who should notify contractors, vendors and other individuals who work with various University departments that their services may not be needed during winter break?

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I hate when senders ignore the instructions in my OOO message. Usually, my message is something simple like: “I am out [Dates], returning to the office [Date]. Please contact Jane (jane’s email address) in my absence. General [department] questions may be sent to [general dept email address].” To me that says if you are sending me anything then I won’t see it until I return. If you have something you need to be resolved right away, you can contact Jane or send it to our department inbox (where it should be going anyway).